DeBlock

Revision as of 05:27, 28 March 2020

Description

It performs deblocking on the picture, using the deblocking filter of H264. It's useful to deblock the result of MVCompensate of MVTools plugin, etc.

Requirements

• AviSynth 2.6.0 or later
• Supported color formats: All planar formats

Syntax and Parameters

Deblock (clip, int "quant", int "aOffset", int "bOffset")

clip   =

Input clip.

int  quant = 25

The higher the quant, the stronger the deblocking. Range is from 0 to 60.

int  aOffset = 0

Quant modifier to the blocking detector threshold. Setting it higher means than more edges will deblocked.

int  bOffset = 0

Another quant modifier, for block detecting and for deblocking's strength. There again, the higher, the stronger.

string  planes = "yuv"

Specifies which planes to process between y, u and v.

• If quant + aOffset is less than 16, the filter does nothing at all. The same goes for quant + bOffset.

Examples

Deblock with default settings:

MPEG2Source("Blocky.dv2")
Deblock(quant=25, aOffset=0, bOffset=0)

To deblock the motion compensation (MVTools plugin):

vectors = source.MVAnalyse(isb = false, lambda = 1000)
compensation = source.MVCompensate(vectors, mode = 0)
compensation.Deblock()

Changelog

Version      Date            Developer       Changes

v1.3         2018/05/29      MysteryX        - Back-ported code from VapourSynth
                                             - Added high-bit-depth support
                                             - Added Planes parameter to specify which planes to process
v0.9         2013/12/03      tp7             - Faster and supports all planar colorspaces
v1.2         2006/04/23      Fizick          - Moved code into separate project
v1.1         2006/01/09      Manao/Fizick    - Present in old MvTools (up to v1.1)

Archived Downloads

External Links

• v1.2 Documentation
• Fizick's Avisynth Filters

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